Grad student finds PFAS in seabirds from Narragansett Bay, Massachusetts Bay, Cape Fear

Evidence continues to accumulate about human and wildlife exposure to chemical compounds called per- and polyfluoroalkyl substances, collectively referred to as PFAS, and their deleterious effects on the environment. The latest study, by a University of Rhode Island graduate stud … | Continue reading


@phys.org | 42 minutes ago

Extreme wildfires turn smoke apps into the new weather apps

For weeks, smoke has blanketed the west coast. The Bay Area has seen a vast improvement in the past few days, but terrible air lingers in Portland and Seattle. Millions of people have been furiously checking the air quality ratings in their neighborhood regularly. On the worst da … | Continue reading


@phys.org | 43 minutes ago

Feeding indoor cats just once a day could improve health

Got a cat that always seems hungry? New University of Guelph research suggests you might want to reduce—not increase—how often you feed them. | Continue reading


@phys.org | 46 minutes ago

California grants western Joshua trees temporary endangered species protections

California officials took the unusual step Tuesday of granting temporary endangered species status to the western Joshua tree, but will allow 15 solar energy firms to raze Joshua trees that stand in the way of their shovel-ready projects. | Continue reading


@phys.org | 47 minutes ago

Survey reveals popular misconceptions about child marriage

Misconceptions about child marriage (marriage under 18) appear widespread among the American public, potentially hampering efforts to address the practice globally. David Lawson and colleagues at the University of California, Santa Barbara, present these findings in the open-acce … | Continue reading


@phys.org | 1 hour ago

Scientists shine light on tiny crystals behind unexpected violent eruptions

In a new study of volcanic processes, Bristol scientists have demonstrated the role nanolites play in the creation of violent eruptions at otherwise 'calm' and predictable volcanoes. | Continue reading


@phys.org | 1 hour ago

Flood risks: More accurate data due to COVID-19

Emerging use of Global Navigation Satellite System (GNSS) makes it possible to continuously measure shallow changes in elevation of Earth surface. A study by the University of Bonn now shows that the quality of these measurements may have improved significantly during the pandemi … | Continue reading


@phys.org | 2 hours ago

Iron in the fire: Researchers pinpoint how iron deposits form

University of Alberta scientists have uncovered the formation mechanism behind a class of mineral deposits that have been hotly contested until now. The findings shed new light on how iron deposits, among others, form—and this new understanding can aid geologists in the hunt for … | Continue reading


@phys.org | 2 hours ago

NASA sees post-tropical storm Teddy generating heavy rain over Eastern Canada

Hurricane Teddy has transitioned to a large post-tropical cyclone over eastern Canada. Using a NASA satellite rainfall product that incorporates data from satellites and observations, NASA estimated Teddy's rainfall rates. In addition to the heavy rainfall, Teddy causing destruct … | Continue reading


@phys.org | 3 hours ago

Poll: Americans' views of systemic racism divided by race

In the wake of outrage across the nation and racial justice protests spurred by the deaths and injuries of George Floyd, Breonna Taylor, Jacob Blake and other Black Americans, more than half of Americans believe policing in the country is not fair, according to a new national pol … | Continue reading


@phys.org | 3 hours ago

Some polar bears in far north are getting short-term benefit from thinning ice

A small subpopulation of polar bears lives on what used to be thick, multiyear sea ice far above the Arctic Circle. The roughly 300 to 350 bears in Kane Basin, a frigid channel between Canada's Ellesmere Island and Greenland, make up about 1-2% of the world's polar bears. | Continue reading


@phys.org | 3 hours ago

Creating 'green' protein from the air

Increasing environmental challenges have led scientists to rethink how protein can be produced. Traditional processes require a lot of space on land or sea, resulting in a high carbon footprint and reduced resources. A new article in Chemical & Engineering News, the weekly newsma … | Continue reading


@phys.org | 3 hours ago

Terra satellite confirms Paulette's second post-tropical transition

NASA's Terra satellite passed over post-tropical storm Paulette after it had transitioned for a second time. Using infrared imagery, Terra found no strong storms remained. | Continue reading


@phys.org | 3 hours ago

School bus-size asteroid to safely zoom past Earth

A small near-Earth asteroid (or NEA) will briefly visit Earth's neighborhood on Thursday, Sept. 24, zooming past at a distance of about 13,000 miles (22,000 kilometers) above our planet's surface. The asteroid will make its close approach below the ring of geostationary satellite … | Continue reading


@phys.org | 3 hours ago

Climate scientists uncover 30-year-old temperature record

The World Meteorological Organization (WMO) has recognized a temperature of -69.6°C (-93.3°F) at an automatic weather station in Greenland on 22 December 1991 as the coldest ever recorded in the Northern Hemisphere. | Continue reading


@phys.org | 3 hours ago

NASA tracking Beta's heavy rainfall into lower Mississippi Valley

Slow-moving post-tropical storm Beta continues to drop large amounts of rainfall in Texas as it moves into the Lower Mississippi Valley on Sept. 23. A NASA satellite rainfall product that incorporates data from satellites and observations estimated Beta's rainfall rates. | Continue reading


@phys.org | 3 hours ago

Genome duplications as evolutionary adaptation strategy

Genome duplications play a major role in the development of forms and structures of plant organisms and their changes across long periods of evolution. Heidelberg University biologists under the direction of Prof. Dr. Marcus Koch made this discovery in their research of the Brass … | Continue reading


@phys.org | 3 hours ago

Placing barthelonids in evolutionary context

New species of microbial life are continually being identified, but localizing them on a phylogenetic tree is a challenge. Now, researchers at the University of Tsukuba have pinpointed barthelonids, a genus of free-living heterotrophic biflagellates typified by Barthelona vulgari … | Continue reading


@phys.org | 3 hours ago

Study shows impact of climate change on Neotropical freshwater ecosystems

To understand how climate change may affect different ecosystems, 27 researchers from Brazil, Argentina, Colombia, Costa Rica, French Guiana and Puerto Rico, among other countries, conducted experiments in seven different locations involving the aquatic environment in the tank (c … | Continue reading


@phys.org | 3 hours ago

Halt post-disturbance logging in forests

Storms, fires, bark beetles: Many forests around the world are increasingly affected by these and other natural disturbances. It is common practice to eliminate the consequences of these disturbances—in other words, to harvest damaged trees as quickly as possible. Spruce trees at … | Continue reading


@phys.org | 3 hours ago

NASA finds Dolphin swimming against wind shear

NASA's Terra satellite provided a visible image of a slightly elongated Tropical Storm Dolphin as it battled wind shear upon its approach to east central Japan. | Continue reading


@phys.org | 3 hours ago

Tiny worlds reveal fundamental drivers of abundance, diversity

The natural world is astonishingly complex. After centuries of study, scientists still have much to learn about how all the species in an ecosystem coexist, for example. New research on microbial communities published in Nature Communications helps light the way to answering this … | Continue reading


@phys.org | 3 hours ago

NASA finds Tropical Storm Lowell's center north of strongest side

NASA's Aqua satellite used infrared light to identify strongest storms and coldest cloud top temperatures in Tropical Storm Lowell and found them south of the center of circulation. | Continue reading


@phys.org | 3 hours ago

Magnetic 'T-Budbots' made from tea plants kill and clean biofilms

Biofilms—microbial communities that form slimy layers on surfaces—are difficult to treat and remove, often because the microbes release molecules that block the entry of antibiotics and other therapies. Now, researchers reporting in ACS Applied Materials & Interfaces have made ma … | Continue reading


@phys.org | 3 hours ago

Neurotic college students could benefit from health education

College students are under a lot of stress, even more so lately due to the COVID-19 pandemic. Based on certain personality types, especially neurotic personalities, college health courses could help students develop a more positive stress mindset, according to research from facul … | Continue reading


@phys.org | 3 hours ago

Single photon emission from isolated monolayer islands of InGaN

Single photon emitters are essential devices for the realization of future optical quantum technologies including optical quantum computing and quantum key distribution. Towards this goal, Scientists in China and Japan identified and characterized a novel type of quantum emitter … | Continue reading


@phys.org | 4 hours ago

MoonRanger will search for water at moon's south pole

MoonRanger, a small robotic rover being developed by Carnegie Mellon University and its spinoff Astrobotic, has completed its preliminary design review in preparation for a 2022 mission to search for signs of water at the moon's south pole. | Continue reading


@phys.org | 4 hours ago

Researchers concerned about prey and predator species in post-fire logging areas

New research from UBC Okanagan shows that salvage logging on land damaged by wildfires has negative impacts on a variety of animals. | Continue reading


@phys.org | 4 hours ago

Scientists predict potential spread, habitat of invasive Asian giant hornet

Researchers at Washington State University have predicted how and where the Asian giant hornet, an invasive newcomer to the Pacific Northwest, popularly dubbed the "murder hornet," could spread and find ideal habitat, both in the United States and globally. | Continue reading


@phys.org | 4 hours ago

Converting lateral scanning into axial focusing to speed up 3-D microscopy

In optical microscopy, high-speed volumetric imaging is limited by either the slow axial scanning rate or aberrations introduced by the z-scanning mechanism. To overcome these limitations, scientists at UT Southwestern have introduced a novel optical design that transforms a late … | Continue reading


@phys.org | 4 hours ago

A Sudoku-solving algorithm holds promise for protein medicine

Computational biologists at the University of Toronto have developed an artificial intelligence algorithm that has the potential to create novel protein molecules as finely tuned therapeutics. | Continue reading


@phys.org | 4 hours ago

Customizable synthetic antibiotic outmaneuvers resistant bacteria

Antibiotic resistance is one of the world's most urgent public health threats. In the United States alone, tens of thousands of deaths result each year from drug-resistant strains of common bacteria such as Staphylococcus aureus and Enterococcus faecium, which can cause virtually … | Continue reading


@phys.org | 4 hours ago

Nanostructures with a unique property

Nanoscale vortices known as skyrmions can be created in many magnetic materials. For the first time, researchers at PSI have managed to create and identify antiferromagnetic skyrmions with a unique property: critical elements inside them are arranged in opposing directions. Scien … | Continue reading


@phys.org | 4 hours ago

Stability check on Antarctica reveals high risk for long-term sea-level rise

The warmer it gets, the faster Antarctica loses ice—and much of it will disappear forever. Consequences for the world's coastal cities and cultural heritage sites would be detrimental, from London to Mumbai, and from New York to Shanghai. That's the conclusion of a team of resear … | Continue reading


@phys.org | 4 hours ago

Unraveling the genome in 3-D space

Proper folding of extremely long chromosomal DNA molecules is crucial for the correct functioning of the cell. Scientists from the Gerlich lab at IMBA—Institute of Molecular Biotechnology of the Austrian Academy of Sciences—developed a groundbreaking method to map contact points … | Continue reading


@phys.org | 4 hours ago

Scientists devise 'Trojan horse' approach to kill cancer cells without using drugs

Cancer cells have been killed in lab experiments and tumor growth reduced in mice, using a new approach that turns a nanoparticle into a 'Trojan horse' that causes cancer cells to self-destruct, a research team at the Nanyang Technological University, Singapore (NTU Singapore) ha … | Continue reading


@phys.org | 4 hours ago

Photoacoustic microscopy for identifying sentinel lymph nodes of breast cancer

Tumor metastatic sentinel lymph nodes are difficult to distinguish from normal or inflamed lymph nodes (Inf-LN). Researchers designed a dual-targeting nanoparticle 5K-HA-HPPS for fluorescent/photoacoustic imaging of sentinel LN. Photoacoustic imaging showed a distinct spatial dis … | Continue reading


@phys.org | 4 hours ago

Big promises, but can China be carbon neutral by 2060?

Xi Jinping's shock promise to lead the world into a safer climate future was thin on details, leaving many questions unanswered on how the world's worst polluter will meet a 2060 carbon neutral target. | Continue reading


@phys.org | 4 hours ago

Lockdown air pollution: Nitrogen dioxide halved, but sulphur dioxide doubled

A University of Liverpool study of air pollution in the UK during the first 100 days of lockdown has revealed that whilst nitrogen oxide levels were cut by half, levels of sulfur dioxide increased by over 100%. | Continue reading


@phys.org | 5 hours ago

Patented 'molecular heaters' to increase crop yield

Researchers at the University of Amsterdam have developed a novel class of molecules capable of raising the temperature of plants. Application of such molecular heaters allows crops to grow at lower environmental temperatures. This can extend the growth season, increase the avail … | Continue reading


@phys.org | 5 hours ago

Tips for living online: Lessons from six months of the COVID-19 pandemic

Valentine's Day was sweet, spring break was fun, then… boom! COVID-19. Stay-at-home orders, workplace shutdowns, school closures and social distancing requirements changed lives almost overnight. Forty-two percent of the U.S. workforce now works from home full-time. In the six mo … | Continue reading


@phys.org | 6 hours ago

It's time for states that grew rich from oil, gas and coal to figure out what's next

These are very challenging times for U.S. fossil fuel-producing states, such as Wyoming, Alaska and North Dakota. The COVID-19 economic downturn has reduced energy demand, with uncertain prospects for the extent of its recovery. Meanwhile, rising concern about climate change and … | Continue reading


@phys.org | 6 hours ago

New analysis of black hole reveals a wobbling shadow

In 2019, the Event Horizon Telescope Collaboration delivered the first image of a black hole, revealing M87*—the supermassive object in the center of the M87 galaxy. The team has now used the lessons learned last year to analyze the archival data sets from 2009-2013, some of them … | Continue reading


@phys.org | 6 hours ago

New materials: A toggle switch for catalysis

Electrochemistry is playing an increasingly important role: Whether it is fuel cells, electrolysis or chemical energy storage, chemical reactions controlled by electric current are used. The decisive factor in all these applications is that the reactions are as fast and efficient … | Continue reading


@phys.org | 6 hours ago

From deepfakes to fake news, an array of influences aim to shape voter decisions

Gone are the days when voter influences involved a candidate stump speech, a piece of direct mail, a TV ad or a pamphlet. | Continue reading


@phys.org | 6 hours ago

Can ethics classes actually influence students' moral behavior?

Philosophers and ethicists have never had scientific proof that university ethics classes affect student moral behavior—until now. | Continue reading


@phys.org | 6 hours ago

Coronavirus disrupted my kid's first year of school. Will that set them back?

Students in the first year of school to Year 10 have been learning remotely in Victoria. It's estimated first-year students (known as prep in Victoria) in areas that have been under lockdown for some time have missed around 12 weeks of classroom schooling in terms two and three. | Continue reading


@phys.org | 6 hours ago

Scientists create world's smallest 'refrigerator'

How do you keep the world's tiniest soda cold? UCLA scientists may have the answer. | Continue reading


@phys.org | 6 hours ago